If Kamal gives 20 marbles to Shuvo, then, both of them will have equal numbers of marbles in their possessions. If Shuvo gives 40 marbles to kamal then Kamal will have twice the number of marbles that Shuvo will retain. What is the number of marbles that Kamal has?
Created: 6 years ago |
Updated: 3 years ago
best des
ধরি,
কামাল ও শুভর মার্বেল যথাক্রমে x ও y টি।
প্রথম শর্তে, x - 20 = y + 20
x - y = 20 + 20
x - y = 40................. (1)
দ্বিতীয় শর্তে, x + 40 = 2 ( y - 40)
বা, x + 40 = 2y - 80
বা, 80 + 40 = 2y - x
2y - x = 120............ (2)
(1) + (2) =
2y - x = 120
x - y = 40
y = 160
(1) নং হতে x - 160 = 40
x = 200
অর্থাৎ, কামালের কাছে মার্বেল আছে 200 টি।
Md Azizur Rahman
Founder of Satt
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